The Full Wiki

More info on Ligamenta flava

Ligamenta flava: Wikis

  
  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

Ligament: Ligamenta flava
Gray303.png
Vertebral arches of three thoracic vertebræ viewed from the front.
Gray301.png
Median sagittal section of two lumbar vertebræ and their ligaments.
Gray's subject #72 290
From
To
MeSH A02.513.514.287
Dorlands/Elsevier l_09/12492241

The ligamenta flava (singular, ligamentum flavum, Latin for yellow ligament) are ligaments which connect the laminae of adjacent vertebra, all the way from the axis to the first segment of the sacrum. They are best seen from the interior of the vertebral canal; when looked at from the outer surface they appear short, being overlapped by the laminæ.

Each ligament consists of two lateral portions which commence one on either side of the roots of the articular processes, and extend backward to the point where the laminæ meet to form the spinous process; the posterior margins of the two portions are in contact and to a certain extent united, slight intervals being left for the passage of small vessels. Each consists of yellow elastic tissue, the fibers of which, almost perpendicular in direction, are attached to the anterior surface of the lamina above, some distance from its inferior margin, and to the posterior surface and upper margin of the lamina below. In the cervical region the ligaments are thin, but broad and long; they are thicker in the thoracic region, and thickest in the lumbar region.

Their marked elasticity serves to preserve the upright posture, and to assist the vertebral column in resuming it after flexion. The elastin prevents buckling of the ligament into the spinal canal during extension, which would cause canal compression. Hypertrophy of this ligament may cause canal stenosis because it lies in the posterior portion of the vertebral canal.

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.








Got something to say? Make a comment.
Your name
Your email address
Message